2.2 Key terms Flashcards
(4 cards)
1
Q
Ion
A
an atom or group of atoms that carries a positive or negative electric charge
2
Q
Axon
A
conducts impulses away from the cell body
3
Q
Synapse
A
the place at which a nervous impulse passes from one neuron to another
4
Q
Myelin Sheath
A
In a neuron, an insulating coat of cell membrane
